[ioseph]

> Only on a motorbike.

Only above a certain speed, at low speeds countersteering will not work

Similarly above a certain speed on a bicycle countersteering is the only way you can turn

[schoen]

Some people seem to describe this difference as unconscious countersteering versus deliberate countersteering, that is, that the difference isn't really whether you're countersteering or not, but whether the countersteer is large enough that you have to do it "on purpose".